Object Notes:

• Constellation: Ophiuchus
• Location: RA: 16h 57m 6.0s Dec: -04d 05' 59" Epoch 2000
• Size: 12.2 arc-minutes
• Magnitude: 6.6
• Type: Globular Cluster
• AKA: ngc6254

Instrument:

Ritchey-Chretien 32" Telescope

Focal Ratio:

f7.2 (prime focus)

Camera:

SBIG STL-11000 CCD camera
(See product review in July, 2004 issue of Sky & Telescope magazine.)

Exposure:

40 x 1 minutes Luminance Unbinned
14 x 1 minutes each R/G/B, all unbinned

Guiding:

Off-Axis with STV Autoguider (Santa Barbara Instrument Group)
(See product review in May, 2003 issue of Astronomy magazine.)
See Photo/Guiding Equipment.

Date:

5/30/05

Post Processing:

CCDSoft, CCDSharp, MaxIM DL, Photoshop CS